4865978077 has 8 divisors (see below), whose sum is σ = 4998476376. Its totient is φ = 4733531712.

The previous prime is 4865978069. The next prime is 4865978111. The reversal of 4865978077 is 7708795684.

It can be written as a sum of positive squares in 4 ways, for example, as 445589881 + 4420388196 = 21109^2 + 66486^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4865978077 - 2³ = 4865978069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4865976077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246423 + ... + 265435.

It is an arithmetic number, because the mean of its divisors is an integer number (624809547).

Almost surely, 2^4865978077 is an apocalyptic number.

It is an amenable number.

4865978077 is a deficient number, since it is larger than the sum of its proper divisors (132498299).

4865978077 is a wasteful number, since it uses less digits than its factorization.

4865978077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25967.

The product of its (nonzero) digits is 23708160, while the sum is 61.

The square root of 4865978077 is about 69756.5629672219. The cubic root of 4865978077 is about 1694.5590841856.

It can be divided in two parts, 48659 and 78077, that added together give a square (126736 = 356²).

The spelling of 4865978077 in words is "four billion, eight hundred sixty-five million, nine hundred seventy-eight thousand, seventy-seven".